Messages in this thread Patch in this message | | | Date | Wed, 17 May 2006 00:00:07 -0700 | From | Chris Wright <> | Subject | [PATCH 07/22] [PATCH] smbus unhiding kills thermal management |
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-stable review patch. If anyone has any objections, please let us know. ------------------
Do not enable the SMBus device on Asus boards if suspend is used. We do not reenable the device on resume, leading to all sorts of undesirable effects, the worst being a total fan failure after resume on Samsung P35 laptop.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> ---
drivers/pci/quirks.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
--- linux-2.6.16.16.orig/drivers/pci/quirks.c +++ linux-2.6.16.16/drivers/pci/quirks.c @@ -861,6 +861,7 @@ static void __init quirk_eisa_bridge(str } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge ); +#ifndef CONFIG_ACPI_SLEEP /* * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge * is not activated. The myth is that Asus said that they do not want the @@ -872,8 +873,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it * becomes necessary to do this tweak in two steps -- I've chosen the Host * bridge as trigger. + * + * Actually, leaving it unhidden and not redoing the quirk over suspend2ram + * will cause thermal management to break down, and causing machine to + * overheat. */ -static int __initdata asus_hides_smbus = 0; +static int __initdata asus_hides_smbus; static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) { @@ -1008,6 +1013,8 @@ static void __init asus_hides_smbus_lpc_ } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 ); +#endif + /* * SiS 96x south bridge: BIOS typically hides SMBus device... */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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